Cash register



FIG. 1 is a perspective view of the cash register showing our new design with the display panel extended;

FIG. 2 is a top plan view thereof with the display panel retracted;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view of FIG. 2;

FIG. 5 is a rear elevational view of FIG. 2;

FIG. 6 is a right side elevational view of FIG. 2; and

FIG. 7 is a left side elevational view of FIG. 2. 

The ornamental design for a cash register, as shown and described. 